Admission requirments

All the necessary information for foreign students about academic programs, recruitment and procedures can be found at: http://www.dfait-maeci.gc.ca/ics-cki/recruit-interstudent-e.asp, but here is a bit of information.

Language proficiency:
You will need to have a proficient level of understanding of either French or English, to be able to follow course lectures and reading assignments. Language requirements are set by each institution. Some post-secondary institutions might ask you to take a language test such as TOEFL or IELTS, but Canadian universities often have their own tests for students. They may charge a fee for the tests, which you will have to pay yourself. Your local Canadian Education Center (CEC) or the admissions staff at the universities, can provide information on English examination tests acceptable to Canadian universities. CEC staff can also advise students on whether they may be exempted from taking an English examination.
On the other hand if you are interested in studying at a French language institution, there are no standardized French language tests that international students are required to pass in order to qualify for a admission. French-Canadian universities, however, will determine the level of a student's French language skills on a case-by-case basis, and may choose to administer their own written tests if language skills are in question.

Entrance exams:
There is no national Canadian entrance exam. The only exam requirement for admissions is an English language exam for those whose mother tongue is not English.